AUXILIARY OPTICAL DEVICES

摘要

Disclosed in some examples are auxiliary optical systems for removably attaching to mobile devices, including mobile telephones with onboard cameras, to provide enhanced optical features. Some auxiliary optical systems can be configured to attach to multiple different types and sizes of mobile devices. Some auxiliary optical systems can be configured to attach to a mobile device that includes a protruding onboard camera. For example, in some embodiments, a retainer portion of an auxiliary optical system can comprise a region for receiving the protruding onboard camera in a clearance or friction fit.